One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(9,10)(11,13)(12,14)(15,16)(17,18,22,26,23,20,21,25)(19,24,29,27,30,31,28,32)(1,2,4,5)(3,6,7,8)(9,11,12,15)(10,13,14,16)(17,19,21,28,23,30,22,29)(18,24,25,32,20,31,26,27)(3,7)(6,8)(10,14)(13,16)(17,20,23,18)(19,27,30,32)(21,25,22,26)(24,28,31,29)(1,3,4,7)(2,6,5,8)(17,18,23,20)(19,24,30,31)(21,25,22,26)(27,28,32,29)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.